Better to just visit https://massgrave.dev/index.html#MAS_Latest_Release this is the official site.
GitHub: https://github.com/massgravel/Microsoft-Activation-Scripts/releases/latest
Bitbucket: https://bitbucket.org/WindowsAddict/microsoft-activation-scripts/src/master/
Best Tip: Upgrade to SSD kung naka-Hard Drive pa yang laptop mo.
Kung di naman posible dahil walang budget pangbili ng SSD, ioptimize mo nalang yang Operating System mo
Possible din po na yung ethernet cable mismo yung may problema, minsan meron pong mga unreliable na cable, try nyo pong itroubleshoot isaksak directly yung cable na papunta sa router nila sa inyong laptop or any available devices then observe po yung performance.